Hi, I'm working with the MKE04 with the ADC conversion. I'm reading the signal from a linear potentiometer and I'm trying to differ 100 positions, in this case (0-5v).
The thing is that the ADC conversion is not stable, for example working with 8 bits I get +-4 conversion value when the potentiometer is not moving. I've tried with everything that I know of ( hardware filtering, software average) and I could not get beyond that -+4 value. Then I tried with other board that we have the MKV11Z64 having the vrefh at 5v and the conversion is far better, with just 1 value of error.
The thing is that I cannot use the MKV11 for this project because we are out of space we would like to use a tsop16 micro at best, so I have two questions.
Are there any tsop 16 or less microcontrolers specialised on ADC?
If not, is there any way to improve the adc conversion of my uc?